1 // A class to orchestrate the concept of video encoding. Will keep track of
2 // the muxes to stream and disk, the QuickSyncEncoder, and also the X264Encoder
3 // (for the stream) if there is one.
5 #ifndef _VIDEO_ENCODER_H
6 #define _VIDEO_ENCODER_H
13 #include "audio_encoder.h"
15 #include "ref_counted_frame.h"
16 #include "ref_counted_gl_sync.h"
20 class QuickSyncEncoder;
23 class VideoEncoder : public KeyFrameSignalReceiver {
25 VideoEncoder(QSurface *surface, const std::string &va_display, int width, int height, HTTPD *httpd);
28 void add_audio(int64_t pts, std::vector<float> audio);
29 bool begin_frame(GLuint *y_tex, GLuint *cbcr_tex);
30 RefCountedGLsync end_frame(int64_t pts, int64_t duration, const std::vector<RefCountedFrame> &input_frames);
32 // Does a cut of the disk stream immediately ("frame" is used for the filename only).
33 void do_cut(int frame);
35 virtual void signal_keyframe() override {
36 stream_mux_writing_keyframes = true;
40 void open_output_stream();
41 void close_output_stream();
42 static int write_packet_thunk(void *opaque, uint8_t *buf, int buf_size);
43 int write_packet(uint8_t *buf, int buf_size);
45 std::unique_ptr<QuickSyncEncoder> quicksync_encoder;
47 std::string va_display;
51 std::unique_ptr<Mux> stream_mux; // To HTTP.
52 std::unique_ptr<AudioEncoder> stream_audio_encoder;
53 std::unique_ptr<X264Encoder> x264_encoder; // nullptr if not using x264.
55 // While Mux object is constructing, <stream_mux_writing_header> is true,
56 // and the header is being collected into stream_mux_header.
57 bool stream_mux_writing_header;
58 std::string stream_mux_header;
60 bool stream_mux_writing_keyframes = false;